One of the oldest pesticides known, pyrethrum is also the strongest insecticide allowed under National Organic Standards guidelines. Made from the dried flowers of a little white daisy now classified ...

Pyrethrum, a natural insecticide, is ideally suited to the climate in the foothills of the Virunga mountains where gorillas live Musanze, Rwanda: Tourists flock to Rwanda’s mountains to see its famed ...

THE insecticidal properties of the flowers of certain species of pyrethrum (Chrysanthemum) have been known for a long period, the very high toxicity of the active principles to insects and their ...